Cooking stove



Aug. 12, 1930. 1.. PONDAL 1,772,961

COOKING STOVE Filed Dec. 31, 1927 "Fig.1

ll orwzal Patented Aug. 12, 1930 LUIS PONDAL, OF BUENOS AIRES, ARGENTINA COOKING s'rovn Application filed December 31, 1927. Serial No. 243,952.

This invention has reference to an im- Figure 2 is a horizontal section along line proved cooking vessel and has for its object IIII of Figure 1. an apparatus for cooking automatically and In the figures, the same reference numbers with an insignificant consumption of fuel. indicate the same or correspondingparts. 5 Other accessory objects of same are described Following is a description of the vessel delater in this specification. scribed in Figures 1 and 2. I

In this manner the maximum amount of ,The heat which is given out by the stove, heat is obtained at a minimum of cost. In together with that contained in the food and fact, once the foodstuffs are brought to boilretained bythe insulated walls of the appaing point, the fire may be put out, and the V ratus, is sufficient to keep the contents of the so cooking and seasoning left to finish, by means cooking pot hot for many hours, and to finish of the heat which is contained in the foodoff the cooking and seasoning in a far more stufl's and retained by the insulated walls of advantageous manner, both from an economithe vessel. cal and culinary point of view, than with the 1 One of the advantages derived from this ordinary type of stove. v I 55 system is that it is not necessary to pay any It is necessary to provide a separate water attention to the food-studs whilst cocking, "heater,with its own source of heat, whether either by skimming or stirring. electricity or alcohol.

Another important point secured by this This simple utensil is suitable for cooking apparatus is the maintenance of the temperone sole dish, or it may be divided so as to 70 ature of the food for a long period. provide for several dishes. In this latter case Moreover, it is not necessary, as in ordiit is simply a matter of a pot with vertical dinary vessels, first to put in the food stuffs visions 10, as may be seen in the dotted lines which are difficult to cook, and after a time in Figure 2. Hit is required to use the pot to those which are easily cooked, but all may be carry the food away from the stove, the insu- 75 put in at the same time, together with condilated pot illustrated in Figs. 1 and 2 is suitments; whatever time they may be left in the able. This pot consists of three parts: the reapparatus, they will be found to be perfectly cipient 1, with a single bottom but double seasoned, and cooked to perfection. walls filled in with asbestos 3, a double hot- Another object of the invention is to make tom 4 provided with a flange 6 so that the pot so it possible to cook various dishes at the same shall fit perfectly into it, and atop 5 also with time, which is achieved by employing a co'okdouble walls is provided with a flange 9 fiting vessel with vertical divisions. ting closely on to the pot. Both the top and Another point is that of being able to keep the bottom cones are insulated with asbestos 3 the food hot in the cooking utensil itself, and and are interchangeable. 8F carrying the latter. For this purpose the pot The interchangeability not only simplifies is provided with insulated sides, and with and cheapens the manufacture but also makes insulated top and bottom as well. The two the pot or vessel reversible. last-named are only put into place after the Furthermore, the top has on either side a 40 pot has been withdrawn from the stove. fastening slot 7 which engages a pin 8 in 90 In order that the invention may be clearly the side of the pot, with the object of uniting understood, and easily put into practice, it the parts perfectly, and in the case of the top has been illustrated by way of example in one cover bringing pressure upon the washer 11, of the forms in which it may be carried into of india rubber or other suitable material.

practice, in the accompanying drawings. The working of this pot is as follows: To 5 Figure 1 is an elevation partially in partial secure the proper cooking of the contents, it section of an insulated cooking pot for use is placed in a stove, without top or bottom. with a stove, and is the object of this inven- Once the food is brought to the boil, the pot is tion, and further for carrying same and keepwithdrawn and the top 5 and bottom 4 placed ing the contents hot, and in position.

all

In this manner the contents go on cooking and seasoning, and remain hot for a long time.

In the construction of this apparatus thin "plates 6f aluminium, iron or other suitable metal, are used for the double walls of both covers and-pots,and the filling is of asbestos or other material refractory tohigh temperatures, and non-conductor of heat.

The form of the pot or vessel instead of being cylindrical may, as can easilybe understood, be of square or any other form.

It is evident that the invention is notlimited to the embodiments describedand:illustrated, but may undergo modifications as to details, always providedthat these'dol'not depart from the sphere of the inventiom which is clearly determined in the claims.

Claims:

1. A cooking -=vessel comprising a 'main body portion having double sidewalls,-said side Walls'beingspaced and having insulating material therebetween, and detachable top and bottom covers for said vessel, each oifsaid covers being double Walled andcontaining heat insulating materiah-said top and bottom cov rs'being interchangeable.

2. A cooking vessel as claimed-in claim 1, said body: and saidcovershaving cooperating means for locking said cover-to said body,

said means comprising annular flanges on said covers adapted to embrace the respective ends of the body.

3. A cooking vessel as claimed in claim 1,

'said'body and said covers having cooperating means forlocking said covers tosaid body,

saidmeans comprisingfianges on said covers adaptedto embrace the 'repectiveends' of said body; said body having radially projecting studs and said covers each having inclined slots to cooperate with said studs tohold said cover firmly on said body.

In testimony whereof I allixmy signature.

LUIS PONDAL. 

